21st Century Concentricity Gauge wheel alternatives

[viva la figa]

One of the members here has very kindly and graciously given me a 21st concentricity gauge like this one. I want to spend what little money I have on the dial indicator as I believe that will net the best results. I would love to have the wheel for this system but at $65 plus $15 shipping from 21st Century.....$80 for a wheel is a bit too much for my pocketbook right now.

What methods do you guys use to roll the brass without introducing errors?

Does anyone have a DIY build for a wheel or similar?

 

[straightshooter1]

I use a Sinclair Concentricity Gauge without a any wheel. I use my fingers and it works just fine. The wheel makes things a little easier and a little faster, but using your finger you can get accurate readings just fine.

 

[spife7980]

I would get a little piece of wood, 6” long and maybe half an inche wide, stretch a rubber band around it long ways and you now have a messed up violin bow... or a lovely little wand to roll the cases with in one smooth board instead of your lumpy fingers.